Amherst -- You may have received one of the neon-yellow fliers in the mail: “Are you or someone you know ...75 years of age or older and not taking a Vitamin D supplement? ...” If you read it closely instead of tossing it out, you would have learned that the flier, sent by Jennifer Higgins at Cooley Dickinson Hospital in Northampton, is recruiting candidates for a study to determine whether or not taking the vitamin affects cognitive performance, that is, the way a person processes information or applies knowledge.
